2N7000 (MOSFET)

Pinout

Summary

The 2N7000 is a versatile N-channel enhancement-mode MOSFET. It’s widely used in low-power switching applications due to its low gate threshold voltage, meaning it can be driven directly by low-voltage logic levels. Key features include low on-resistance and fast switching speed, making it suitable for tasks like switching power to LEDs, motors, and other components

Control logic

• Gate (G): Controls the flow of current between the drain and source. It’s usually connected to a control signal, often with a gate resistor to limit current
• Drain (D): The output of the MOSFET; connected to the load you want to control
• Source (S): The return path to ground

When a positive voltage is applied to the gate, it creates a channel for current to flow from the drain to the source, turning the MOSFET on. When the gate voltage is removed or is zero, the MOSFET turns off, stopping the current flow.